.page-contact {
  --pc-card-w: 320px;
  --pc-r: 3px;
  background: var(--frost);
  color: var(--ink);
  font-family: var(--font-sans);
}

/* ============ 首屏 ============ */
.page-contact .pc-head {
  padding-top: clamp(24px, 4vw, 46px);
  padding-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .pc-head .eyebrow {
  margin: 22px 0 0;
  color: var(--lake);
}

.page-contact .pc-head h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(29px, 4.4vw, 52px);
  line-height: 1.13;
  letter-spacing: -0.01em;
  margin: 14px 0 0;
  max-width: 20ch;
  color: var(--deep);
}

.page-contact .pc-lede {
  max-width: 62ch;
  margin: 18px 0 0;
  font-size: clamp(15.5px, 1.5vw, 18px);
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .pc-lede--onDark {
  color: rgba(244, 248, 251, 0.78);
}

.page-contact .pc-quick {
  list-style: none;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--hair);
  display: flex;
  flex-wrap: wrap;
  gap: 14px 40px;
}

.page-contact .pc-quick li {
  display: flex;
  align-items: baseline;
  gap: 9px;
}

.page-contact .pc-quick__num {
  font-family: var(--font-mono);
  font-size: clamp(19px, 2vw, 24px);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--lake);
  line-height: 1;
}

.page-contact .pc-quick__txt {
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

/* ============ 首屏视觉 ============ */
.page-contact .pc-hero {
  margin: 0;
  padding: 0 0 clamp(30px, 4vw, 54px);
}

.page-contact .pc-hero .frame {
  border-radius: var(--pc-r);
  overflow: hidden;
  border: 1px solid var(--hair);
  box-shadow: var(--shadow-1);
}

.page-contact .pc-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-contact .pc-hero .figure__cap {
  margin-top: 12px;
  font-size: 12.5px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* ============ 联系方式区 ============ */
.page-contact .pc-reach {
  padding: clamp(28px, 4vw, 52px) 0 clamp(44px, 6vw, 84px);
  background: linear-gradient(180deg, var(--frost) 0%, #EDF4F8 100%);
}

.page-contact .pc-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-contact .pc-card {
  background: #FFFFFF;
  border: 1px solid var(--hair);
  border-radius: var(--pc-r);
  box-shadow: var(--shadow-1);
  padding: 24px 22px 22px;
}

.page-contact .pc-card .eyebrow {
  color: var(--lake);
}

.page-contact .pc-card__title {
  font-family: var(--font-sans);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.4;
  margin: 8px 0 0;
  color: var(--ink);
}

.page-contact .pc-card__rule {
  height: 1px;
  background: var(--hair);
  margin: 18px 0 2px;
}

.page-contact .pc-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--hair);
}

.page-contact .pc-item:last-of-type {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-contact .pc-item__key {
  display: block;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 7px;
}

.page-contact .pc-item__val {
  display: block;
  font-size: 15px;
  line-height: 1.55;
  color: var(--deep);
  word-break: break-word;
}

.page-contact .pc-item .copy-btn {
  margin-top: 10px;
}

.page-contact .pc-item__note {
  display: block;
  margin-top: 9px;
  font-size: 12.5px;
  line-height: 1.68;
  color: var(--muted);
}

.page-contact .pc-card__hint {
  margin: 18px 0 0;
  padding: 12px 14px;
  border-left: 2px solid var(--lake);
  border-radius: 0 var(--pc-r) var(--pc-r) 0;
  background: linear-gradient(135deg, rgba(31, 143, 166, 0.09), rgba(61, 240, 138, 0.07));
  font-size: 12.5px;
  line-height: 1.72;
  color: var(--deep-2);
}

/* ============ 右栏正文 ============ */
.page-contact .pc-sub {
  padding-bottom: clamp(30px, 4vw, 48px);
}

.page-contact .pc-sub + .pc-sub {
  border-top: 1px solid var(--hair);
  padding-top: clamp(28px, 3.5vw, 44px);
}

.page-contact .pc-sub:last-child {
  padding-bottom: 0;
}

.page-contact .section__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--lake);
}

.page-contact .pc-h2 {
  font-family: var(--font-sans);
  font-size: clamp(20px, 2.4vw, 27px);
  font-weight: 600;
  line-height: 1.36;
  letter-spacing: -0.005em;
  margin: 10px 0 0;
  color: var(--ink);
}

.page-contact .pc-h2--onDark {
  color: var(--frost);
}

.page-contact .pc-p {
  max-width: 68ch;
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
}

/* 渠道对照 */
.page-contact .pc-compare {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
  border-radius: var(--pc-r);
  overflow: hidden;
}

.page-contact .pc-compare__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 9px;
  padding: 18px 20px;
  background: #FFFFFF;
}

.page-contact .pc-compare__scene {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.58;
  color: var(--ink);
}

.page-contact .pc-compare__pick {
  justify-self: start;
}

.page-contact .pc-compare__why {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* 响应节奏数据 */
.page-contact .pc-stats {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
  border-radius: var(--pc-r);
  overflow: hidden;
}

.page-contact .pc-stats li {
  background: #FFFFFF;
  padding: 16px 18px 18px;
}

.page-contact .pc-stats__n {
  display: block;
  font-family: var(--font-mono);
  font-size: 23px;
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: 0.01em;
  color: var(--lake);
}

.page-contact .pc-stats__unit {
  font-size: 13px;
  margin-left: 2px;
  color: var(--muted);
}

.page-contact .pc-stats__t {
  display: block;
  margin-top: 7px;
  font-size: 12.5px;
  line-height: 1.62;
  color: var(--muted);
}

/* ============ 深色合作区 ============ */
.page-contact .pc-dark {
  padding: clamp(44px, 7vw, 92px) 0 clamp(48px, 7vw, 96px);
  background:
    radial-gradient(1100px 520px at 84% -10%, rgba(31, 143, 166, 0.32), transparent 62%),
    radial-gradient(680px 420px at 4% 106%, rgba(61, 240, 138, 0.10), transparent 58%),
    linear-gradient(180deg, var(--deep) 0%, var(--deep-3) 100%);
  color: var(--frost);
}

.page-contact .pc-dark .pc-lede {
  margin-top: 16px;
}

/* 合作方向 */
.page-contact .pc-directions {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(127, 212, 224, 0.18);
  border: 1px solid rgba(127, 212, 224, 0.18);
  border-radius: var(--pc-r);
  overflow: hidden;
}

.page-contact .pc-dir {
  background: rgba(11, 27, 43, 0.62);
  padding: 24px 22px 26px;
  transition: background var(--dur) var(--ease);
}

.page-contact .pc-dir:hover {
  background: rgba(19, 41, 61, 0.9);
}

.page-contact .pc-dir__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--lake-soft);
}

.page-contact .pc-dir__t {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  margin: 12px 0 0;
  color: var(--frost);
}

.page-contact .pc-dir__d {
  font-size: 14px;
  line-height: 1.78;
  margin: 10px 0 0;
  color: rgba(244, 248, 251, 0.76);
}

.page-contact .pc-dir__r {
  font-size: 12.5px;
  line-height: 1.72;
  margin: 14px 0 0;
  padding-top: 13px;
  border-top: 1px solid rgba(127, 212, 224, 0.18);
  color: var(--lake-soft);
}

/* 合作流程 */
.page-contact .pc-flow-h {
  margin-top: clamp(46px, 6vw, 78px);
}

.page-contact .pc-flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  margin-top: 26px;
}

.page-contact .pc-step {
  border-top: 1px solid rgba(127, 212, 224, 0.2);
}

.page-contact .pc-step:last-child {
  border-bottom: 1px solid rgba(127, 212, 224, 0.2);
}

.page-contact .pc-step__sum {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 19px 2px;
  cursor: pointer;
  transition: background var(--dur) var(--ease);
}

.page-contact .pc-step__sum::-webkit-details-marker {
  display: none;
}

.page-contact .pc-step__sum::marker {
  content: "";
}

.page-contact .pc-step__sum:hover {
  background: rgba(127, 212, 224, 0.05);
}

.page-contact .pc-step__idx {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 21px;
  font-weight: 500;
  letter-spacing: 0.03em;
  line-height: 1;
  color: var(--lake-soft);
}

.page-contact .pc-step__name {
  flex: 1 1 auto;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--frost);
}

.page-contact .pc-step__dur {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--batch);
}

.page-contact .pc-step__body {
  padding: 0 2px 22px;
}

.page-contact .pc-step__body p {
  max-width: 66ch;
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.82;
  color: rgba(244, 248, 251, 0.74);
}

.page-contact .pc-step__out {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--lake-soft);
}

.page-contact .pc-step__outk {
  display: inline-block;
  padding: 1px 8px;
  border: 1px solid rgba(127, 212, 224, 0.42);
  border-radius: 2px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--lake-soft);
}

/* 流程配图 */
.page-contact .pc-flow__fig {
  margin: 0;
}

.page-contact .pc-flow__fig .frame {
  border-radius: var(--pc-r);
  overflow: hidden;
  border: 1px solid rgba(127, 212, 224, 0.2);
}

.page-contact .pc-flow__fig img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-contact .pc-flow__fig .figure__cap {
  margin-top: 11px;
  font-size: 12px;
  line-height: 1.66;
  color: rgba(244, 248, 251, 0.55);
}

/* 深色区收尾 */
.page-contact .pc-dark__cta {
  margin-top: clamp(36px, 5vw, 62px);
  padding-top: 26px;
  border-top: 1px solid rgba(127, 212, 224, 0.2);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
}

.page-contact .pc-dark__cta p {
  flex: 1 1 320px;
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: rgba(244, 248, 251, 0.82);
}

.page-contact .pc-link {
  font-size: 14px;
  color: var(--lake-soft);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(127, 212, 224, 0.45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .pc-link:hover {
  color: var(--lime);
  border-color: var(--lime);
}

/* 焦点可见 */
.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ============ 响应式 ============ */
@media (min-width: 900px) {
  .page-contact .pc-split {
    grid-template-columns: var(--pc-card-w) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-contact .pc-card {
    position: sticky;
    top: 28px;
  }
}

@media (min-width: 720px) {
  .page-contact .pc-compare__row {
    grid-template-columns: 126px minmax(0, 1fr);
    column-gap: 22px;
    align-items: baseline;
  }

  .page-contact .pc-compare__pick {
    grid-column: 1;
    grid-row: 1;
  }

  .page-contact .pc-compare__scene {
    grid-column: 2;
    grid-row: 1;
  }

  .page-contact .pc-compare__why {
    grid-column: 2;
    grid-row: 2;
  }
}

@media (min-width: 780px) {
  .page-contact .pc-directions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 34px;
  }

  .page-contact .pc-step__body {
    padding-left: 46px;
  }
}

@media (min-width: 1024px) {
  .page-contact .pc-directions {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .pc-flow {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 52px;
    align-items: start;
    margin-top: 32px;
  }

  .page-contact .pc-flow__fig {
    position: sticky;
    top: 28px;
  }
}

@media (max-width: 520px) {
  .page-contact .pc-quick {
    gap: 14px 24px;
  }

  .page-contact .pc-quick li {
    flex: 1 1 100%;
  }

  .page-contact .pc-card {
    padding: 20px 18px 18px;
  }

  .page-contact .pc-step__dur {
    flex: 1 1 100%;
    padding-left: 0;
  }

  .page-contact .pc-dark__cta {
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}